Ancient Persians used many languages and writing systems for different purposes between 550 BCE and 400 BCE. Languages included Old Persian, Akkadian, Aramaic, and Elamite, with Elamite serving as the official language of the empire. Old Persian, created under Darius I, was mainly used for high status purposes and recording exploits, influenced by Aramaic. Persians kept extensive government records, literature, and records of war using scripts usually etched on clay tablets, with writing performed by scribes as it was not a general skill. These ancient languages and writing forms went on to influence later languages and writing systems.